All vulnerabilities

Servers and applications

CVE-2018-7556

LimeSurvey 2.6.x before 2.6.7, 2.7x.x before 2.73.1, and 3.x before 3.4.2 mishandles application/controller/InstallerController.php after installation, which allows remote attackers to access the configuration file.

Severity
Critical 9.1
Published
28 Feb 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.6.7, 2.73.1, 3.4.2
Exploit chance
2% in the next 30 daysHigher than 80% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Information exposure (CWE-200)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Sources
NVD

Affected software

SoftwareAffected versions
LimeSurveyServers and applications · cpe:a:limesurvey:limesurvey
  • From 2.6.0 before 2.6.7
  • From 2.7.0 before 2.73.1
  • From 3.0.0 before 3.4.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-7556
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-7556